Not sur if its a bug or not but a bigger ship can bee built faster than a smaller...
My 40000 ton CV takes 0.09 years
Gotland class Carrier 40300 tons 1234 Crew 4768.4 BP TCS 806 TH 3250 EM 240
4032 km/s Armour 6-104 Shields 8-375 Sensors 14/1/0/0 Damage Control Rating 15 PPV 36
Annual Failure Rate: 2598% IFR: 36.1% Maint Capacity 1370 MSP Max Repair 562 MSP Est Time: 0.09 Years
Hangar Deck Capacity 11000 tons Magazine 1020
Internal Confinement Fusion Drive E0.5 (13) Power 250 Fuel Use 5% Signature 250 Armour 0 Exp 1%
Fuel Capacity 50,000 Litres Range 44.7 billion km (128 days at full power)
Delta R375/12.5 Shields (3) Total Fuel Cost 38 Litres per day
Twin 12cm C6 Ultraviolet Laser Turret (1x2) Range 160,000km TS: 10000 km/s Power 8-12 RM 4 ROF 5 4 4 4 4 3 2 2 2 1 1
Twin 10cm C6 Ultraviolet Laser Turret (1x2) Range 120,000km TS: 10000 km/s Power 6-12 RM 4 ROF 5 3 3 3 3 2 2 1 1 1 1
Twin 15cm C6 Ultraviolet Laser Turret (1x2) Range 240,000km TS: 10000 km/s Power 12-12 RM 4 ROF 5 6 6 6 6 4 4 3 3 2 2
CIWS-250 (4x10) Range 1000 km TS: 25000 km/s ROF 5 Base 50% To Hit
Fire Control S08 300-12500 (1) Max Range: 600,000 km TS: 12500 km/s 98 97 95 93 92 90 88 87 85 83
Tokamak Fusion Reactor Technology PB-1 AR-0 Standard (5) Total Power Output 40 Armour 0 Exp 5%
Missile Fire Control FC92-R10 (1) Range 92.4m km Resolution 10
Active Search Sensor MR99-R500 (1) GPS 9000 Range 99.0m km Resolution 500
Thermal Sensor TH1-14 (1) Sensitivity 14 Detect Sig Strength 1000: 14m km
ECCM-4 (1) ECM 20
This design is classed as a military vessel for maintenance purposesMy 800 ton Fighter takes 16.27 years
J
-29 "Flygande Tunnan" class Fighter 800 tons 44 Crew 138 BP TCS 16 TH 60 EM 0
3750 km/s Armour 3-7 Shields 0-0 Sensors 1/1/0/0 Damage Control Rating 1 PPV 7.5
Annual Failure Rate: 5% IFR: 0.1% Maint Capacity 108 MSP Max Repair 15 MSP Est Time: 16.27 Years
Magazine 50
FTR Internal Confinement Fusion Drive E500 (1) Power 60 Fuel Use 5000% Signature 60 Armour 0 Exp 25%
Fuel Capacity 5,000 Litres Range 0.2 billion km (16 hours at full power)
Size 10 Box Launcher (5) Missile Size 10 Hangar Reload 75 minutes MF Reload 12.5 hours
Missile Fire Control FC36-R155 FTR (1) Range 36.8m km Resolution 155
Active Search Sensor MR40-R340 FTR (1) GPS 3672 Range 40.4m km Resolution 340
Compact ECCM-1 (1) ECM 10
This design is classed as a military vessel for maintenance purposes